Inventor
Kazuaki Hiyama
Inventor
Tokyo, JP
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H03Kprimary
H03KPulse technique33%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems27%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h108%
H02HEmergency protective circuit arrangements6%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters6%
H01LSemiconductor devices4%
H10DInorganic electric semiconductor devices4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
H01FMagnets2%
H02JElectric power networks2%
PatentTitleYear
11,025,245Power conversion device202110,978,953Flyback power supply, inverter and electrically powered vehicle202110,833,669Semiconductor device, inverter, and automobile20209,843,318'Buffer circuit'20179,716,052'Semiconductor device comprising a conductive film joining a diode and switching element'20179,530,766'Semiconductor device'20169,461,640'Switching element drive circuit, power module, and automobile'20169,455,566'Drive protection circuit, semiconductor module, and automobile'20169,013,850'Semiconductor device'20158,933,568'Semiconductor device'20158,610,485'Gate drive circuit'20138,421,163'Power module'20137,710,187'Gate drive circuit'20107,602,595'Semiconductor device'20097,547,992'Drive device driving a plurality of semiconductor elements having respective reference potential electrodes coupled via a main electrode unit and alternating current power supply device provided with the drive device'20096,891,707'Semiconductor protection circuit'20056,756,825'Power device driving circuit'20046,735,098'Inrush current limiting circuit, power source device and power conversion device'20046,680,630'Driver circuit for power device'20046,654,262'Inverter with pre-charging capacitor to reduce inrush current'20036,459,598'Inverter device'20026,351,399'Power converter'20026,018,474'Switching device'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2021Patents assigned to MITSUBISHI ELECTRIC CORP (23)· patent assignee history
2000–2005Based in Fukuoka, JP· patent location history
2002–2021Based in Tokyo, JP· patent location history
2009Based in Chiyoda-ku, JP· patent location history
2013–2016Patents assigned to HIYAMA KAZUAKI (5)· patent assignee history
2015Patents assigned to ISHIHARA MIKIO (1)· patent assignee history
2015Patents assigned to KATO HAJIME (1)· patent assignee history
2015Patents assigned to SASAKI TAISHI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUBISHI ELECTRIC CORP | 23 | 2000–2021 |
| HIYAMA KAZUAKIself | 5 | 2013–2016 |
| ISHIHARA MIKIO | 1 | 2015 |
| KATO HAJIME | 1 | 2015 |
| SASAKI TAISHI | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 15 | 2002–2021 |
| Fukuoka, JP | 7 | 2000–2005 |
| Chiyoda-ku, JP | 1 | 2009 |